Blast-furnace construction



Ma 31 1927, 1630474 y w. EATON ET AL BLAST FURNACE CONSTRUCTION I Filed March 51, 1924 3 Sheets-Sheet 1 Maw: Wymn [02572 fiauad T zm-zm Ma 31 1927. I

Y w. EATON ET AL BLAST FURNACE CONSTRUCTION Filed March 31, 1924 3 Shoots-Sheet 2 I M guy/4% l 630 474 May 31, 1927. WLEATON ET AL I,

I BLAST FURNACE CONSTRUCTION Filed March 31, 1924 3 Sheets-Sheet 3 Patented May 31 1927.

WYMAN EATON, on carcass, rumors, AnQQT V D;rfcnoxron; OE G Y iA QT OHIO; sAIn EAmon AssIeNon' ornrs nnrrnn rnrnen'sr Tc FREYNI'ENGINEERING COMPANY, or cnicaeo, ILLINOIS- ie coeronerron on MAINE.

BLAsT-i Un'NAcE ooivsrnuorion.

Application filed Marchfil, 1924. S ra n5. 702,307.

This invention relates to a new and iinproved blast furnace construction and more particularly to a method ofsupporting skip inclines and charging bells upon blast. furnaces. I Blast furnaces as now generally constructed are provided with skip inclines supported at an intermediate point by Afi'a'mes and having an upper cantilever portion adj acent the top of the furnace. This cantileverportion' usually supports the charging bells. Thismethod of supporting the bells un-' desirable because of possibility of independent movement of the furnace and, the bell supporting cantilever;

These independent movements may be caused by settlingof the furnace or by un-' equal expansion of the furnaceshell under irregular .heat conditions. Theymay be caused by settlement of the skip incline sup-' port or by the expansion and contraction of the a skip. incline underv varying heat conditions' An accurate centering of the charging bells is essential for a correct and uniform distribution of the furnace charging throughout the periphery of the furnace.

It is, therefore, highly important that the charging bells move With the furnace in any displacements thereof.

In certain other types offurnace Where the upper end of the skip incline is supported upon the furnace 'shell, the skip incline produces a side, thrust upon the furnace which is undesirable.

It is an object of the present invention to provide a blast furnace constructionhaving the skip incline and charging bells supported from the furnace in such manner as to insure maintenance ofthe adjustment of the bells relative to the furnace. I

It is a further ob'ect to provide aconstruction of this character in Which no side thrust is imparted to the furnace by the skip incline, and in which the skip and bell loads are applied substantially symmetrically It is an additional object to provide a construction in which the cantilever section of the skip incline is reduced to a minimum. Other and further objects will appearas the description proceeds.

We have illustrated a preferred embattdrawings, in Which' ment' of our invention in the accompanyi-v -Figure-;1 is a somewhat diagrammatic elevation of the furnace with our invention applied thereto; I i

Figure 2=is a-view of the furnace as's'eenfrom .above, certain parts being broken away fcrtliesake of clearness; y

1 Figure 3 is view of Figure 2as seen from theleft; and I I Figure/l is aside elevation'ofthe struotin-e shown in Figure'3.- 7

7 "Referring now to- Figure 1,-thefurnace11 -carriesuponits top the skip and bell supportingstructure 12 and also the outrigger 13. The sk1p lIlCllIlG l4 issupp'orted from the'structure 12 by means of links 15 Which are pivota-ll y connected to the skip incline and structure The uppercantilever portion 16 of the ski-pincline carries the top. plat a form 1:7 upon Which'is supported the sheaves house21. I

The bell operatingrocjkers 22 and, 23 are The cable 19qoperating the skip 20 passes over the sheaves 18' and do'vvnnpon the opposite side of the furnace tothe hoist;

supported upon the upper extension-24 0f the structure 12. The rockers 22 are connected to the small bell 25, as best shoWnin Figure 3; The rocker 23 is connected to the by cables 27 and the rocker 23 is operated by cable 28, these cables running down to the hoist house; 21.,

.large bell 26. The rockers 22 are" operated .In this present construction will be i ture 24 upon the opposite side of the fur? nace axis. The exact-location of these loads may be sorelated as to substantially equalwe the (distribution of the load about the furnace axis. This equalization of the distribution is important-in preventing unequal settlement of the furnace and minimizing temporary deflection. under operating. load conditions. Itwill be observed that with this construction it will be, possible to run the outrigger 13 over the bells whichfacili-i tates removal or adjustmentlofvthe bells. j

.A further advantage Of this structure lies a the skipiop'eratingcable to pass 'over the opposite side of the furnace ithout necesand skip incline supporting structure car- 1ried upon the up-per portion of the furnace,

a skip incline and furnace bells and bell op-r sitating an excessively heavy skip structure to prevent flexure under load. 'Also flex'ure Iof the skip incline will-haven-o effect upon the'b'elllocation. Bringing these operating cables down upon the oppositeside of the furnace is usually desirable because it eliminates idler pulleysand simplifies thehandling of; the cables. 7 I lVehave shown one preferred form of construction by Way of illustrationonly but it is to be understood that we contemplate .such changes and modifications to meet va- 1 rying conditions, as may comewithin the.

spirit and scope of the appended claims";

Neyclaim: 3 g I 1. In a blastfurnace construction, a bell and skip incline supporting structure lcarriedupon the upper portion. of thefurnace,

a skip incline and furnace bells and bell op-' 1 crating mechanism, the skip incline "being supportedefrom one side of the supporting structure and the bell mechanism; being supported upon the opposite side'of the sup porting vstructure.

In a blast furnace construction, a bell,

and skip incline supporting structure carriedupon the upper portion of the furnace) J a skip incline and furnace bells and :bell

ope'ratingmechanism, the skip incline being supported fromjone slde of the supporting structure by means of pivoted linksland. I 7

ture.j c 2' c p 3. In a blastff'urnace. construction, a 'bell crating mechanism, theskipincline being supported from one side of the supporting structure by means of pivoted links, skip operating cables extending over sheaves car'-- ried by the top of the skip incline, the cables extending downwardly upon the opposite side of the furnace, and the bell mechanism being supported upon theopposite side of structure carried upon theu-pperportionlof the furnace, the skip incline being supported upon one side of the supporting.

structure, skip operating cables extending over sheaves at the top of the furnace and 7 to j downwardly upon theopposite side of the furnace to the skip incline, andthe bell'ojperating mechanism and bells being supported b the opposite side of the supporting struccure. V

1 Signed at Chicago, I111, this 18 a igr] fWYMAN EATON) March, 1924.

Signed a Cleveland, Ohio,ithis- 24 day of'March, 1924 I v a I DAVID oaoXTo 

